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    <title>Document</title>
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<body>
    <script>
        var aa ="2021-02-24";

        //获取当前时间
        var date = new Date();
        var year = date.getFullYear();
        var month = date.getMonth() + 1;
        var day = date.getDate();
        if (month < 10) {
            month = "0" + month;
        }
        if (day < 10) {
            day = "0" + day;
        }
        var nowDate = year + "-" + month + "-" + day;

        console.log(aa);
        console.log(nowDate);
        console.log(aa<nowDate);

    </script>
</body>

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